Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment is not merely an obligation but an enthusiastic dedication to the fine art and exacting science of precision manufacturing. Driven by an unwavering passion, we tirelessly pursue excellence in every intricately crafted component. Our unsurpassed expertise stands as a beacon of guidance in the sophisticated world of high-end component fabrication, lighting the way to unparalleled precision and excellence. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our advanced solutions are tailored to meet the needs of a wide array of industries, effectively addressing diverse applications, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and groundbreaking solutions for cutting-edge medical devices, steadfastly maintaining the highest quality standards.
- Semiconductors: Supporting chip production and its related equipment by providing essential core components that are critical to the industry's success and innovation.
- New Energy: Vigorous engagement in the sustainable development of pioneering energy equipment, driving forward eco-friendly technological advancements.
- Automotive: Offering vital components that propel innovation within the automotive domain, significantly contributing to the progress of smart and electric vehicles.
Main Products
- We excel in the production of non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, ensuring unparalleled precision and superior quality with each product.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machines, enabling us to masterfully address a comprehensive spectrum of equipment categories. Our state-of-the-art facilities empower us to expertly fulfill the intricate and diverse machining needs of various industries, guaranteeing unmatched precision and efficiency.
- With a rich history spanning two decades, we leverage vast production experience coupled with substantial technical and process prowess. This guarantees exceptional quality, forward-thinking innovation, and establishes us as pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination
Each raw material entering our warehouse is subject to an exhaustive and stringent examination process. Our meticulous analyses include evaluating the chemical composition and a thorough inspection of the physical properties. We uphold an unwavering commitment to quality by requiring every supplier to provide a Certificate of Origin and a stamped Declaration of Conformity. This ensures that only the finest materials are selected for use in our high-precision medical machining services. Our rigorous authentication process guarantees that these materials meet the highest standards of integrity and purity, perfectly aligning with our steadfast commitment to quality.
Intensive In-Process Quality Assurance
Within our intricate and precise machining operations, every component is meticulously scrutinized to ensure its dimensions and tolerances do not just meet but exceed our exacting specifications. Our diligent and continuous inspection protocol is strategically designed to intercept potential defects early on, thereby preventing non-conforming parts from progressing to subsequent stages. This vigilant approach is pivotal in minimizing the risk of substandard goods, ensuring superior quality at each phase of production, and maintaining excellence throughout the entire process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process serves as a foundational strategy crucial for identifying and resolving potential production challenges at an early stage. This proactive approach prevents issues from escalating into mass production. The comprehensive and precise nature of our FAI process is essential in minimizing quality risks, ensuring our products consistently ascend to the pinnacle of standards. This dedication to excellence permeates every aspect of the production cycle, guaranteeing that we meet and exceed the highest quality benchmarks.
Meticulous Comprehensive Final Inspection
Before any product leaves our facility, it undergoes a meticulous and thorough final inspection. This process rigorously evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our comprehensive inspection process is a testament to our relentless commitment to quality, ensuring that every part dispatched from our facility meets our exacting standards. We are steadfast in delivering only the highest quality products to our valued customers, upholding our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Established in 2009, tracing its origins back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has become a beacon of high-precision component machining. For over 20 years, we have committed to relentless innovation and technical exploration, blossoming into pioneers within precision engineering. We have cultivated an unparalleled depth of technical expertise, which has earned us an illustrious market reputation, distinguishing us as industry leaders. Our precision medical machining services are second to none, consistently achieving precise tolerances and flawless surface finishes, which positions us as the go-to choice in the medical field.
With four production bases strategically located within the dynamic environments of Shenzhen and Guiyang, supported by a workforce of over 400 dedicated employees, Donghui has forged a robust and vertically integrated industry chain. This chain seamlessly integrates research, development, production, and delivery, ensuring we meet and exceed the diverse requirements of our customers with unparalleled efficiency and exceptional quality. Our cutting-edge facilities are engineered to tackle the most intricate and demanding machining challenges, maintaining our standing for excellence and innovative breakthroughs.
Workshop Display
Certifications
FAQ
1. What is CNC machining?
CNC (Computer Numerical Control) machining is a manufacturing process where pre-programmed computer software controls the movement of machinery and tools. It's used for a wide range of materials, including metal, plastic, and wood.
2. What materials can be used in CNC machining?
CNC machines can handle a variety of materials such as:
- Metals (aluminum, steel, titanium, brass, copper)
- Plastics (ABS, POM, nylon, acrylic)
- Wood and composite materials
- Ceramics and more.
3. What is the difference between CNC milling and CNC turning?
- CNC Milling: Involves rotating the cutting tool and moving it along multiple axes to remove material from a workpiece.
- CNC Turning: Involves rotating the workpiece and using a stationary cutting tool to remove material, mainly for cylindrical parts.
4. How do I choose the right CNC machining service?
Factors to consider include:
- Material requirements
- Tolerance and precision
- Production volume
- Lead time
- Cost-effectiveness
5. What is the typical lead time for CNC machining?
Lead times depend on the complexity of the part, the material, the required finish, and the production volume. Typically, CNC machining can take anywhere from a few days to a couple of weeks for a prototype or small batch, but larger orders may take longer. Normally 7 days for prototyping and 20 days for mass production shipment.
6. What is the maximum size of a part that can be CNC machined?
The size limitations depend on the specific CNC machine being used. Large-scale machines can accommodate parts up to several meters in length, while smaller machines are typically limited to parts around 1000mm in length or less.
7. What is the accuracy and tolerance of CNC machining?
CNC machining offers high precision, with tolerances typically ranging from ±0.01mm to ±0.1mm. However, the exact tolerance will depend on the machine and the material used.
8. How much does CNC machining cost?
CNC machining costs vary based on factors such as:
- Material choice
- Part complexity
- Machine time
- Labor costs
- Quantity (prototypes vs. mass production)
9. What types of finishes can be applied to CNC machined parts?
Common finishes include:
- Anodizing
- Powder coating
- Polishing
- Painting
- Bead blasting
- Electroplating
10. Can CNC machining be used for prototyping?
Yes, CNC machining is widely used for prototyping because it allows for the quick production of precise parts. It's ideal for low-to-medium volume production runs and allows engineers to test designs and make adjustments before mass production.
11. What are some common applications of CNC machining?
CNC machining is used across various industries, including:
- Aerospace and aviation
- Automotive
- Medical devices
- Consumer electronics
- Industrial machinery
12. What are the common challenges in CNC machining?
- Tool wear: As tools wear out, they affect the quality of the parts being machined.
- Material properties: Different materials behave differently during machining, requiring adjustments to the process.
- Programming complexity: Complex designs may need advanced programming skills and specialized machines.
13. How can I ensure the quality of CNC machined parts?
Quality can be ensured through:
- First Article Inspections (FAI)
- In-process inspections
- Final inspections
- Use of quality control tools like CMM (Coordinate Measuring Machine)
Audited Supplier 
){kind=link}